core trilobites

Synonyms

• Asaphida Fortey & Chatterton 1988
• Asaphina Fortey & Chatterton 1988
• Corynexochida
• Corynexochina
• Ellipsocephaloidea
• Libristoma
• Librostoma
• Olenida
• Ptychopariida
• Ptychopariina

Subgroups

• Corynexochidae
• Agraulidae
• Oryctocephalidae
• Asaphoidea
• Proetida
• Phacopida

External Sources